CAK 38 Evap

Coyote · 08-03-2005, 04:59 PM

Well, ive been developing this project for some time, and i have finally build it. This is my new evaporator. Its based on an old Globalwin CAK38 evap, remember that old SOB from the 1.4 tbird era?

First i made some CAD models to play a little with different ideas. i ended up in this:

some pics of the real thing

the cap gets in the top, and the suction sucks right over the core.

finally, after some cleaning i ended up with this.

i hope i can test it soon

_HL4E_HalfLife_ · 08-03-2005, 05:30 PM

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

JSU · 08-03-2005, 05:40 PM

nice going bro! lots of surface area on that thing.

MutantToad · 08-03-2005, 05:52 PM

Nice! Show us some results with it soon; I'm curious to see how it performs.

f00t · 08-03-2005, 06:32 PM

lol. i was staring at the pictures for like 5 mins trying to figure out why the end of the suction line was squeesed together a bit but now i understand

it looks like it will do a nice job and looks alot nicer than any evap that i've built. cant ait for the results

Marvin · 08-03-2005, 07:09 PM

Looks great, but seems a litle big. What the base dimensions ?

n00b 0f l337 · 08-03-2005, 07:10 PM

Hmmm... Its awesome and you giving me an idea...

Coyote · 08-03-2005, 07:34 PM

thx ppl.

marvin, the base is 60x45mm. the extra 7,5mm in each side, is for the mounting device made of tivar.

kemod · 08-03-2005, 09:42 PM

Very very neat job!
Should make a good evap, but how I about oil problem?
The evap is so spacious makes it more possible for the oil to stay there instead of return to suction line.
Can't wait to see when it's mounted to real CPU

saratoga · 08-03-2005, 11:06 PM

Quote:

Originally Posted by kemod

Very very neat job!
Should make a good evap, but how I about oil problem?
The evap is so spacious makes it more possible for the oil to stay there instead of return to suction line.
Can't wait to see when it's mounted to real CPU

It looks like the suctionline extends >80% of the way to the base of the thing, so it'll probably get sucked up before too much can pool.

chilly1 · 08-04-2005, 07:10 AM

Cool EVAP// What do ya call it "ICE CUBE" ??
Can't wait to see results..

Waus-mod · 08-04-2005, 07:13 AM

What a nice design.. hope it will perform like it lookes

Special_K · 08-04-2005, 07:17 AM

sweeeeeeeeeeeeeeeet design and construction =]

Quote:

Originally Posted by f00t

lol. i was staring at the pictures for like 5 mins trying to figure out why the end of the suction line was squeesed together a bit but now i understand

is it similar to the attachments you can get on household vacuum cleaners to get into the crevices?

Quote:

Originally Posted by chilly1

Cool EVAP// What do ya call it "ICE CUBE" ??

lol =]

Coyote · 08-04-2005, 07:30 AM

thx for your comments ppl.

Quote:

Originally Posted by chilly1

Cool EVAP// What do ya call it "ICE CUBE" ??
Can't wait to see results..

ICE CUBE it is then

berkut · 08-04-2005, 07:38 AM

the sucktion line picking up liquid at the bottom of the fins is a bad idea

Coyote · 08-04-2005, 09:42 AM

actually i would like to pick up gaseous refrigerant, not liquid

hatemi · 08-04-2005, 10:42 AM

I used a similar evap on one of my first builds. I modded an old copper HSF like that. Didnt like it that much tough....

Coyote · 08-04-2005, 04:28 PM

what HSF you used?

labrat23 · 08-04-2005, 05:33 PM

Looks efficient. My first thought was that the suction line extending to the bottom was a bad idea but I can see that that configuration would force the refrigerent to flow through almost all the fins. I wonder what would happen if you put a separator between the inner and outer fins forcing the flow to go down to the bottom through the outer fins and back up to the top through the inner fins, negating the need for the suction line to extend to the bottom.

What I can see happening here though is the fins being continually wet, which would make for much better heat transfer than just superheated refrigerant vapor flow over the fins.

IYP · 08-04-2005, 06:07 PM

very nie hope to see some results

stockhatch · 08-04-2005, 07:00 PM

Im curious. Hurry up and test it!

Awesome work BTW...

Coyote · 08-04-2005, 08:00 PM

Quote:

Originally Posted by labrat23

Looks efficient. My first thought was that the suction line extending to the bottom was a bad idea but I can see that that configuration would force the refrigerent to flow through almost all the fins. I wonder what would happen if you put a separator between the inner and outer fins forcing the flow to go down to the bottom through the outer fins and back up to the top through the inner fins, negating the need for the suction line to extend to the bottom.

What I can see happening here though is the fins being continually wet, which would make for much better heat transfer than just superheated refrigerant vapor flow over the fins.

i though doing that, but the suction pipe barely fitted there, i couldnt fit 2 separators there

labrat23 · 08-04-2005, 08:09 PM

Well all I can say is that you are well off the beaten path of evap designs. Allow me to join the corus of 'show us the results'.

Coyote · 08-04-2005, 08:13 PM

well, in part that was one of the first thing i wanted to do of this project.

join the chorus, im the first one singing in this choir

hatemi · 08-04-2005, 08:35 PM

Quote:

Originally Posted by Coyote

what HSF you used?

IIRC it was an old Therlmalright copper HSF.